\section{跨列表格}

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\begin{tabular}{lll}
\toprule
&\multicolumn{2}{c}{常用工具}\\
\cmidrule{2-3}
操作系统 & 发行版 & 编辑器\\
\midrule
Windows & MikTeX & TexMakerX\\
\multirow{2}{*}{Unix/Linux} & teTex & Kile\\
& Yanyg & Cppgp\\
Mac Os & MacTeX & TeXShop\\
通用 & TeXLive & TeXWorks\\
\bottomrule
\end{tabular}
